Burner apparatus for liquid fuels



Oct. 12 ,192e. ELZE ET-AL v 1,603,032

BURNER APPARATUS FOR LIQUID FUELS Filed Nov. 19, 1924 llllllllllllINVENTORS l Valter Elle and JiZYfrdFSe/IumaI In ATTVORNEY Patented Oct,12, 1926.

UNITED STATES PATENT oF FlCE.

WALTER G. ELZE, OF WOODHAVEN, NEW YORK, AND ALFRED I. SCHUMANN, OF BAL-rmonn, ARYLAND, .nssrenons TO BROOKLYN, NEW YORK, A CORPORATIOHAUCK-MANUFAGTURING COMPANY, 01' N NEW YORK.

BURNER APPARATUS FOR LIQUTD FUELS.

Application filed November 19,1924. Serial No. 750,815.

The invention relates to liquid fuel burning apparatus and moreespecially to the burner nozzle thereof; and it has for its ob jectanovel type of burner whereb the diameter of the flame for a given engthis materially increased. A further object of the invention consists inso effecting the combustion of the liquid fuel that a much greaterefliciency isobtained. These advantages are attained by imparting to thegaseous mixture and the resultant flame a whirling motion or helicalmovement about its longitudinal axis.

The nature of the invention, however, will best be understood whendescribed in connection with the accompanying drawings, in which Fig. 1is a longitudinal section thru the improved burner.

Fig. 2 is an end view thereof.

Fig: 3 is a part side elevation and longitudinal section illustrating amodification.

Referring'to the drawings, 10 designates a conical nozzle memberformingthe preliminary combustion chamber for the gaseous fuel mixture which,in properly atomized condition, known manner, an opening 11 beingprovided therefor in the back plate 12 to which said nozzle 10 may besecured. Surrounding this nozzle is a cylindrical casing or hood 13,with tapered end portion or extension 14 beyond the end of the nozzle10. This hood 13 rovides a suitable chamber into which air 1s admittedthru a series of equally spaced and circularly'disposed openings 15 atthe rearward end, the same being tangentially directed into the maincombustion chamber. A series of guide walls 16 over the respectiveopenings 15 are provided to assist in directing the stream of inrushingair so that a definite whirl is produced about the nozzle 10, whichwhirl continues beyond the outlet 14: of the hood and for a considerableportion, if not the entirele ngth, aloi ig aflame om. his causesoutwardly projected there the latter, due to contrifugal action, to materially increase its width; and, moreover, thru the intermixture a moreperfect combustion is eflected.

The nozzle 10, also, is provided with a series of circularly disposedopenings 20 near the back end thereof and thru which air is-admittedtoassist in the prelimmary comis supplied thereto inany well-.

bustion, the final combustion being completed in the chamber formed bythe hood structure 13'14. It has been found advantageous, furthermore,to provide a similar serles of tangentially disposed and equallyspacedopenings 21 in the back plate 12 about the nozzle 10, the said openingsbeing provided with guide Walls 22 and delivering air in awhirlingcondition into the interior of the chamber at the extreme inner end.

As shown in Figs, 1 and 2, the guide walls '16 pmojec-t outwardly fromtheperl hery of thehood 13; but in order to avoi having exteriorprojections from this member, the latter may be provided in its wallwith a series of slots 25, as shown in Fig. 3, with wall or guidemembers 26 set within the body of the hood. The passageways thus formedare tangentially directed into the interior,

the air as in the case of the openings 15 being delivered thru therespective outlets 27 and in a whirling condition, which is subsequentlyimparted to the flame issuing from the mouth of the burner.

Ample air will thus be aflorded'for the combustion of the atomized oilnot only within the nozzle member 10, but also within the chamber formedby the hood-1314 sur rounding said nozzle member; and a hot, efficientand large volumed flame results, the latter, furthermore, beingprojected outwardly from the tapered outlet portion 1 1 with a whirlingmotion about its longitudinal axis. 7

We claim 1. A burner for liquid fuels, comprising: a nozzle member forreceiving and discharging atomized .fuel thru aforward axial opening andaffording a preliminary combustion chamber; and a hood member surroundinsaid nozzle member and extending hood only and tangentially directedintothe interior of saidhood.

2. A burner for liquid fuels, comprising: a nozzle member for receivingand discharg-; ing atomized fuel thru a forward axial opening andaffording a preliminary combustion 'substantlally beyond the outletthereof to chamber; a hood member surrounding said nozzle member andextending substantially beyond the outlet thereof to form a maincombustion chamber, said hood member having a contracted outlet openingaxially alined with respect to the nozzle member opening and providedwith a series of air openings circularly disposed about the nozzlemember and at the rear of the hood only and tangentially directed intothe interior of said hood; and a back plate closing substantially therear of said hood member and having a series of circularly disposedopenings therein and tangentially directed into the interior of thehood.

3. A burner for liquid fuels, comprising: a nozzle member for receivingand discharging atomized fuel thru a forward axial opening and affordingapreliminary combustion chamber; a hood member surrounding a contractedoutlet opening axially alined with respect to the nozzle member openingand provided with walled passageways circularly disposed within andtangentially directed into said hood, said passageways being circularlydisposed about the nozzle member at the rear of the hood only and opento the atmosphere.

Signed at Brookl n, in the county of Kings and State of ew York, this31st day of October, A. D. 1924:.

ALFRED F. SOHUMANN.

